Deep Yellow Limited has announced encouraging results from its latest drilling campaign at the S-Bend prospect in Namibia, confirming new uranium extensions that could expand the company’s resource base and extend the life of its flagship Tumas Project.
The reverse-circulation (RC) drilling programme, conducted between July and September 2025, completed 452 holes totalling 3,361 metres within Exclusive Prospecting Licence 3497, located adjacent to the Tumas Project in the Erongo Region.
Approximately one-third of the holes intersected uranium mineralisation exceeding 100 parts per million (ppm) eU₃O₈.
“Surficial uranium mineralisation was intersected not only within the Tertiary sediments, but also in the underlying fractured and/or foliated Proterozoic bedrock. The bedrock is predominantly composed of schist and gneisses of the Tinkas Formation associated with granodioritic intrusions,” the company stated.
Notable intersections include 8 metres at 332 ppm eU₃O₈ from 1 metre in hole SB0247, 2 metres at 1,217 ppm eU₃O₈ from surface in SB0560, and 5 metres at 407 ppm eU₃O₈ from 1 metre in SB0147.
Mineralisation was identified in both the Tertiary valley-fill sediments and the underlying Proterozoic bedrock, with thicknesses up to 8 metres and an average grade of 196 ppm eU₃O₈.
Deep Yellow said the higher-grade mineralisation is concentrated in four clusters that warrant further detailed drilling to establish a defined resource base.
The results, it noted, strengthen the potential to increase the Tumas resource and extend the current 30-year mine life.
The company is advancing two key uranium projects — Tumas in Namibia and Mulga Rock in Western Australia — alongside exploration at Omahola and Alligator River.
It said the S-Bend results highlight the growing importance of Namibia’s uranium belt to its long-term production strategy.
“The potential to add to the current resource base at Tumas and extend beyond the presently stated 30-year Life of Mine of this project is further enhanced with discoveries such as those identified at the S-Bend prospect,” the company said.
